Evelyn Sanders Caldwell2022-04-212022-04-211972http://hdl.handle.net/20.500.11989/11462The Influence of Certain Constant Temperatures Upon the Rate of Embryonic Development of Anisopterous Dragonflies Perithemis Tenera (SAY) and Perithemis Lydia (DRURY) (ODONATA: Libellulinae)